Exhaust-muffler.



EXHAUST MUFPLB.

APPLIGATION FILED NOV. 4, 1907.

Patented Oct. 20, 1908.

J. M. PORTER, F. LAIRD &` A. GEILFUSS.y

2 SHEETS-SHEET 1.

J. M. PORTER, J. F. LAIRD & A. H. GEILFUSS.

EXHAUST MUPFLBR. y v APPLICATION FILED NOV.4.1907.

Patented Oct. 20, 1908.

2 SHEETB-BHEET 2.

UNITED STATES PATENT OFFICE JOHN M. PORTER, JOHN F. LAIRD, AND ALBERT H. GEILFUSS, OF PARKERSBURG, Y EST VIRGLNIA.

EXHAUST-MU`FFLER Patented Oct. 2U,

, Applicetion'led November l, 1901 Serial No. 400,6A

To'all whomit'ma concern:

Beit known trat we, JOHN M. PosTEn, JOHN F. LAIRD, and ALBERT H. Gmnruss, citizens of the United stateslresidinglat Parkersburg, in the county of Wood and State of West- Virginia, have invented certain new an useful Improvements in Exhaust- Mumers; and We do declare the following to be a full, clear, and exact descri tion of the i 10 invention, such as will enable ot ers skilled in the art to which it ap rtains to make and use the same, reference eing had to the accompanying drawings, and to the letters and figures of reference marked thereon, which 5 form a part of this s ecieation.

Our invention re ates to exhaust-mothers for internal combustion engines and has for its object to provide certain new and useful improvements over the patent to J. M.

20 Porter, exhaust muffler, N o. 806,714, patent ed Dec. 5, 1905, as will be hereinafter more fully described and specifically pointed out in the appended claims;

Ourmvention consists in the novel arrange- .'6 mentof the cells of the mufl'ler and in the novel means for rigidly holding the same in position against the pressure from within.

Our invention also consists in thc-construction of the muffler which provides for a double s0 or compound muffler.

Referring` to the accompanying drawings: Figure 1 isa vertical sectional View taken through a double or compound muflier con struoted in 'accordance with our invention,

:5 Fig. 2*is a transverse sectional view taken on line 2-2 of Fig. 1 l and Fig. 3 is a vertical sec tionallview of a single mufller constructed in accordance with our invention.

Like numerals of mferencc indicate the 40 same parts throughout the several figures in the drawmgsmny be either double or com-4 pound as shownm Fig. 1, or a single muflier as shown in Fig.- 3. In the construction shown in Fig. l a central receiving chamber is employed to which the exhaust pi e from the engine is connected in any snitnh e manner nt 3. The exhaust pot or chamber 2 is 5J provided with two lnt si( es or platos 4 which as shown in Vig. l, are provided with u series of nnnulnr flanges 5 of different circumferences. flanges 5 is arranged a roll, thc cells being dos- '15 iguated by numerals 6, 7, 8, l), 11) und 'l l 5 the ()n the outer `side of each of said receiving chamber 2 an cell 6 being the inner one and the cell l1 be ing the outer one; the intermediate cells 7, Qand 10 being a-rra ed and disposed on t plete 4 in a manner s own in Fig. 1; this onli.' struction and arra 'rement of cells being 'l'u` ed plicated on each ofrithe plaines 4 of the central receiving chamber 2. Each of Vthe` said plates 4 is provdedwith a central 12 through which the exhaust passes from the receiving chamber into the innermost oeil 65 '6 as indicated by arrows in Fig. 1, said cell being provided with a perforated top 13 n n alsoperforations 14 in the sides thereof neli'f the said top 13. The exhaust passingirxtxr.` said cell 6 passesout in' the direction ofthe de arrows and enters the cell 7 which is provided` With a series of perforations 15 near tho-bot-l tom thereof allowing the exhaust to pass into the next inclosing cell 8. Said cell 8 is pro# `vided with avperforated top 16 and a series of vT5 perforations 17 through which the exhaust passes into the next inclosing .cell 9; said cell 9 beingr perforated at 18 allows the exhaust to pass intothe next inclosing cell 10 which has a perforated top -19 and perforations 20 80 near t e top thereof through wl1ichthe exhaust passes into the outer cell 11,'which cell is provided with suitable erforationsas indicated et 21 through w rich the exhaust passes into the atmosphere.

As clearly shown each of the inclosed cells is shorter in length and of a smaller diameter than the next inclosing cell, and it will clear-lv appear from Fig. 1 that the tops of the cells are perforated to receive two or more thread- 9.0, ed rods V22, said rods assing through the (i) through the to s '23 vof the outer inclosing cells 11, said ro s '22 beiugthreaded their entire length to accommodate a series of nuts or taps 24 which are 95 run down on the threaded rods 22 enga `ng the tops of the cells, thereby securelyl hol the same rigidly in position upon t e lates or sidesA of the exhaust ot or ch r 2, thus adequately holding t 1e muiiler against i100 any pressure or internal explosion which might occur therein and preventin any relatively latersl movement of the cel s.

Referring to Fig. 3 it will be seen that the same principle is embodied as that just del scribed except the muffler is not provided with a receiving chamber 2but the' exhaust i' rom the engine passes directly into the innerr most cell 6 from whence it enters the inclosing cells 7, 8, 9,1() and 1l in the manner he 110 what we claim as new, and desire to secure by said plates, substantially .z5

{o1-e described. In the construction shown l series of cells arranged .on`two sides of said 3,'however, a circular plate 25'is e ,ployel havin annular flanges 5 su porting l shorter inlength and smallerin diameter than 'the cells 6, 7, 9, 10 and 11; while t cell 61's rovi'ded with an annular llange 26` I haust to passjrom each inclosed cell to its near the ower end thereof to act as a bearing inclosing cell, substantially as described. forsaid' cell, against the bottom plate 25. 3. A muler of the character described; Two lugs `27 are provided within the bore of j comprising a series of cells one arranged the cell 6 through which the fastening rods 22 .i within the other, each pass as clearly shown. shorter inlength and smaller in diameter Having thus fully described our invention l than its inclosing cell, a base for said cells, a rod passing through the interior o1' each of said cells, assing through each inclosed cell into its inc in engagement with Letters Patent ofthe United States, is

1. A Inuiller of the character described comprising two plates or sides,va series of cells arranged on each of said platea, each inclosing cell being each of said cells for securely t g the same in position on the said base an for .movement o the cells.

In testimony whereof, we afx our tures, in presence of two witnesses.

` JOHN M. PORTER.

JOHN F. LAIRD. ALBERT H. GEILFUSS. Witnesses:

T. P. Bgm, C. HUGH DUFFY.

a greater height and of a larger diameter an` the cell inclosed thereby, means for` wing the exhaust to pass from each inclosed cell to each. inclosing cell, and a rod passing through the mulller in engagement with each of said cells for se# curely tying the same in position upon the as described.

2. A mulller of the lcharacter described comprising a central' receiving chamber, a`

i receiving chamber, each inclosedcell being! e innerf its inclosing cell, means forl allowing the exim inclosed cell being A3'5 osing cell, and means on said rod 40 Ipreventing any relatively lateralV signa- 45 

